<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Login</title>
</head>
<body>
    <div th:if="${param.error}">
        用户名或密码错
    </div>
    <div th:if="${param.logout}">
        您已注销成功
    </div>
    <form th:action="@{/login}" method="post">
        <div><label> 用户名 : <input type="text" name="username" value="user"/> </label></div>
        <div><label> 密  码 : <input type="password" name="password" value="123456"/> </label></div>
        <div><input type="submit" value="登录"/></div>
    </form>
</body>
</html>